This word reminded me of a song we did when I took Chorus (in college); I have no idea who wrote it, but I remember singing, "Ho-dee-ay, ho-dee-ay", with two beats on the ho.

Also--given that we can only be in today (never yesterday or tomorrow), how could anything that isn't a creature of the night help but be hodiurnal?

Well, from a quick google it seems that there are such things as hodiernal past and future tenses, where the tense refers to a time in the past/future but still today.

Bingley

there are such things as hodiernal past and future tenses
I don't know why but that fact leaves me with a feeling of, I don't know if it's awe or amazement, about the human mind - that we would come up with something so specific.

Hodiernal sounds like either a square dance that occurs every day, or a prostitute who works the day shift.

Alex! HA!!!!!!!